Bow'man's cap's ule

[Sir William Bowman, English anatomist, physiologist, and ophthalmologist, 1816-1892.] Capsid a glomeruli. B.'s discs, discs resulting from transverse segmentation of striated muscular fiber treated with weak acids, certain alkaline solutions or freezing. B.'s glands, tubular glands, lined with pigmented epithelium, in the olfactory region of the nasal mucous membrane, behind the muciparous glands. B.'smem'brane, the anterior elastic or limiting membrane of the cornea. B.'s mus'cle, musctilus ciharis. B.'s opera'tion, (i) double-needle operation for dilaceration of a cataract, two lance-pointed needles being introduced through opposite sides of the cornea, the points meeting in the center of the lens and then being separated by moving the handles toward each other; (2)slitting the canaliculus for the relief of stenosis, to evacuate an absce of the lacrymal sac, etc. B.'s probe, a double ended probe for the lacrymal duct, the body of the instrument being widened into a shield for convenience in manipulating. B.'s root, gillenia. B.'s the'ory, that the urine is secreted by simple filtration, influenced by the blood-pre ure, in the glomeruli, and also by a principle of selection, not dependent on the blood-pre ure, by the epithelium of the uriniferous tubules.